Beam steerer

Figure 2. Schematic diagram of fluorescence lifetime determination apparatus. LI and L2 are lenses M, mirror BST, beam steerer BSP, beam splitter SCH, sample cell holder MONO, monochromator PMT, photomultiplier tube. Other components are described in text.

This minor adjustment of the beam in the horizontal and vertical direction is done with the help of electrostatic beam steerers. 

Figure 12.4 A 2-D beam steerer using zone select and zone fill OP As in conjunction with two gratings.

Figure 12.6 Device structure of a birefringent/isotropic bi-prism beam steerer.

With each chapter is designed to be self-contained, the first chapters cover the basic physics of liquid crystals, their interaction with light and electric fields, and the means by which they can be modelled. Next arc described the majority of the ways in which liquid crystals can be used in displays, and Chapter 12, the final chapter of the first edition, deals with photonic devices such as beam steerers, tunable-focus lenses and polarisation-independent devices. In this second edition, four new chapters have been added two on blue phase and polymer stabilised blue phase hquid crystals, which are emerging from the realm of academic research to show promise for very fast response display and photonic devices, a chapter which discusses LCD componentry, and a final chapter on the use of LCDs in 3D display systems. 

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